Air conditioner



1.1 is a front elevation view of an air conditioner, showing our new design;

1.2 is a left side elevation view thereof;

1.3 is a right side elevation view thereof;

1.4 is a top view thereof;

1.5 is a bottom view thereof; and

1.6 is an upper front perspective view thereof. 

CLAIM The ornamental design for an air conditioner, as shown and described. 